asp.net mvc - check member existence in Mvc ViewBag -

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sometimes have check existence of member inside viewbag inside mvc view, see if problem action forgot assign member. inside razor view have:

@if(viewbag.utente.ruolo.sysadmin)

how can check viewbag.utente defined?

you must check objects null or not. utente, utente.ruolo , utente.ruolo.sysadmin may null:

@if (viewbag.utente != null) {   if (viewbag.utente.ruolo != null)   {      if (!string.isnullorempty(viewbag.utente.ruolo.sysadmin))      {        //viewbag.utente.ruolo.sysadmin has value..you can use       }     } }

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